Advances of nanotechnology have persistently decreased the span of the biochip which thus diminished the assembling cost and expanded the high throughput ability. Because of the advantages of low cost, high throughput and scaling down, this innovation can possibly be a significant and incredible asset for clinical research, diagnostics, medicate improvement, toxicology studies, and patient determination for clinical preliminaries. Biochip technology is believed to revolutionize the future research in life sciences, disease diagnosis, drug discovery, forensic sciences and outer space exploitation in the coming century. This book brings together information in the biochip field and also discuss current trends in biochip technology. Biochip as a new research field has enjoyed its rapid development in the past 10 years.